• Hedge funder Scott Bommer and his wife Donya have lowered the price of their 29th-floor apartment at the Ritz-Carlton, which they purchased for $28.5 million last July and put on the market for $35 million in November. It's now listed at $29.75 mil. [Cityfile, Corcoran]
• Jeff Koons has closed on the purchase of a six-story townhouse at 11 East 67th Street for $12 million, two years after he first went into contract. [NYP]
• Loews heiress Laurie Tisch—daughter Bob and Joan, sister of Jonathan and Steve—paid $29 million for a 13th-floor apartment at 834 Fifth Avenue. Her new upstairs neighbor? Rupert Murdoch. [NYO, previously]
• Former Lehman exec Jack Rivkin has put his 7,000-square-foot home off Further Lane in Amagansett on the market for $31 million. [Newsday, Sotheby's]

• Art dealer Dominique Lévy and her partner, film producer Dorothy Berwin, have gone into contract to sell their 6,180-square-foot loft at 140 Franklin Street, which they put on the market for $13.7 million in 2007. The six-bedroom condo had most recently been listed at $7.9 million. [NYT]
• Artist Robert Wilson has lowered the price of his apartment at 3 Great Jones Street, just one month after putting it on the market. It's now priced at $2.559 million. [Curbed, Corcoran]